Arthroplasty, Replacement, KneeKnee ProsthesisOsteoarthritis, Knee
Dr. Daniel Chichek Sun, MD
NPI1083097497PAC ID9537583737
- Medicare services, 2024
- 2,463
- Medicare patients, 2024
- 471
- Part D claims, 2024
- 72
- Publications
- 29
- Hospital affiliations
- 2
- Practice address
- 800 Washington Street, Boston, MA 02111
- Practice phone
- Call (617) 636-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Daniel Chichek Sun is an orthopedic surgeon in Boston, Massachusetts
Dr. Sun practices at Tufts Medical Center in Boston, Massachusetts, part of Tufts Medicine.
Dr. Sun's NPI, 1083097497, was assigned on July 2, 2015. Dr. Sun holds Massachusetts license 283316.
NPI and contact details
- NPI
- 1083097497NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9537583737
- NPI enumeration date
- July 2, 2015
- NPI status
- Active
- Practice phone
- (617) 636-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Daniel Chichek Sun practices at Tufts Medical Center in Boston, Massachusetts
Dr. Sun's primary practice is Tufts Medical Center, at 800 Washington Street, Boston, MA 02111 in Suffolk County. The practice phone is (617) 636-5000.
- Tufts Medical Center800 Washington Street, Boston, MA 02111 · Suffolk CountyPhone(617) 636-5000
Source: Dmand AI Affiliation Data
Dr. Daniel Chichek Sun is affiliated with 8 sites of care and 3 medical groups
Dr. Sun's primary practice is Tufts Medical Center in Boston, Massachusetts, part of Tufts Medicine. Dr. Sun is also affiliated with MelroseWakefield Hospital. The medical group on file is New England Baptist Hospital. Dmand AI also links Dr. Sun to 5 more home health agencies, 2 medical groups and 1 imaging center, each named with a free account.
MelroseWakefield HospitalNew England Baptist Hospital5 home health agenciesNames with a free account2 medical groupsNames with a free account1 imaging centerName with a free account
See all 11 affiliations for Dr. SunSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Daniel Chichek Sun's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sun practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Tufts Medical Center | Available with a free account |
| +7 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Daniel Chichek Sun is one of 593 orthopedic surgeons in Massachusetts
Orthopaedic surgery is Dr. Sun's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Sun is licensed in Massachusetts.
Specialties and state licenses
- Orthopaedic surgery, MassachusettsPrimary
Orthopedic surgeons near Dr. Sun
Counts of orthopedic surgeons with a Dmand AI profile, by place and practice. Each opens the list.
593orthopedic surgeons in Massachusetts177orthopedic surgeons in Boston6orthopedic surgeons at Tufts Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Daniel Chichek Sun billed Medicare for 2,463 services in 2024
CMS data shows 2,463 Medicare services from Dr. Sun across 12 procedure codes in 2024, for 471 Medicare patients. Medicare paid $91,361 for them.
Medicare services, 20242,463
Medicare patients471
Paid by Medicare$91,361
Procedure codes12
Dr. Sun's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 02024: 1,601
- Office and hospital visits
- 2023: 2652024: 601127%
- Surgery
- 2023: 1152024: 261127%
Where Dr. Sun's Medicare services took place, 2024
- In an office1,80273%
- In a facility66127%
Dr. Sun compared with the Massachusetts median for orthopedic surgeons, 2024
- Dr. Sun
- Massachusetts median
- Medicare services
- 2,463vs 6723.7 times
- Medicare patients
- 471vs 30256% above
- Part D claims
- 70vs 5040% above
Medians across 543 orthopedic surgeons in Massachusetts with Dmand AI profiles that report each measure.
Dr. Sun's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Daniel Chichek Sun treated 471 Medicare patients in 2024, average age 73
CMS counts 471 Medicare patients who saw Dr. Sun in 2024. The largest group is 65 to 74, with 210 patients. 75% of them have arthritis, and 75% have high cholesterol. 35% are also on Medicaid. Their average risk score is 1.33, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Sun's median patient age at 69, with 58% women.
Medicare patients, 2024471
Average age73
Average risk score1.33
Also on Medicaid35%
Dr. Sun's Medicare patients by age, 2024
Dr. Sun's Medicare patients by sex, 2024
- Women29462%
- Men17738%
Chronic conditions among Dr. Sun's Medicare patients, 2024
- Arthritis75%
- High cholesterol75%
- High blood pressure74%
- Anxiety34%
- Mood disorders33%
- Chronic kidney disease32%
- Diabetes32%
- Ischemic heart disease29%
Share of Medicare patients with each condition. A patient can have several.
Dr. Sun's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women58%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Daniel Chichek Sun wrote 72 Medicare Part D claims in 2024
In 2024, Dr. Sun wrote 72 Medicare Part D claims for 69 patients. 100% of them were for generic drugs. CMS names the drug for 70 of them, across 1 drug with 11 or more claims each, at $419 in total drug cost. In 2023, CMS named 46 claims across 1 drug.
Part D claims, 202472
Drugs named by CMS1
Total drug cost$419
Part D patients69
Dr. Sun's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 462024: 7052%
Drugs named by CMS: 1 in 2024, 1 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Daniel Chichek Sun ranks in the 88th percentile for hip replacement in Medicare
CMS counts 53 procedures of hip replacement by Dr. Sun, more than 88% of the clinicians it reports for that procedure.
Where Dr. Sun ranks in Medicare procedure volume
- Hip replacement
- 88th percentile53 procedures
- Knee replacement
- 80th percentile51 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Source: Doctors and Clinicians Utilization Data (CMS)
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Dr. Daniel Chichek Sun has 29 publications on record
Dmand AI links 29 papers to Dr. Sun, published from 2011 to 2025. 2023 was the busiest year, with 7. The most frequent topics are Astrocytes, Glaucoma and Optic Nerve. Dr. Sun has published most often in J Arthroplasty. Dr. Sun's most frequent co-authors are Gloria Shoshana Coden, MD, Mohamad Jamal Halawi, MD and Melvyn Augustus Harrington, MD.
Papers29
Years published2011 to 2025
Dr. Sun's papers by year, 2015 to 2025
Topics Dr. Sun writes about most
- Astrocytes
- Glaucoma
- Optic Nerve
- Mice, Inbred C57BL
- Arthroplasty, Replacement, Knee
- Mice, Transgenic
- Disease Models, Animal
- Optic Disk
Dr. Sun's most frequent co-authors
- Gloria Shoshana Coden, MD2 shared papers
- Mohamad Jamal Halawi, MD2 shared papers
- Melvyn Augustus Harrington, MD2 shared papers
Recent publications by Dr. Sun
AnesthesiaArthroplasty, Replacement, KneeCosts and Cost Analysis
See who Dr. Sun researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Sun works with, so you can find a warm path to the right orthopedic surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Daniel Chichek Sun received $16,896 in industry payments from 2016 to 2025
CMS Open Payments shows 188 general payments to Dr. Sun from 21 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 60% of the total. Stryker Corporation paid the most, $9,322.
General payments to Dr. Sun by program year, 2016 to 2025
General payments to Dr. Sun by kind, 2016 to 2025
$16.9Kin total
- Food and beverage$10,17360%
- Education$2,74516%
- Travel and lodging$2,47815%
- Honoraria$1,5009%
Companies that paid Dr. Sun the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Daniel Chichek Sun's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Daniel Chichek Sun
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Daniel Chichek Sun's NPI number?
Dr. Daniel Chichek Sun's NPI number is 1083097497. It was assigned on July 2, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Daniel Chichek Sun?
Dr. Daniel Chichek Sun is an orthopedic surgeon in Boston, Massachusetts. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Daniel Chichek Sun practice?
Dr. Sun practices at 800 Washington Street, Boston, MA 02111. Dr. Sun's primary practice is Tufts Medical Center in Boston, Massachusetts, part of Tufts Medicine. Dmand AI also links Dr. Sun to 5 home health agencies, 2 medical groups and 1 imaging center.
What is Dr. Daniel Chichek Sun's office phone number?
The practice phone on file for Dr. Sun is (617) 636-5000.
What is Dr. Daniel Chichek Sun's medical license number?
Dr. Sun holds Massachusetts license 283316.
Which hospitals is Dr. Daniel Chichek Sun affiliated with?
Dr. Sun practices at Tufts Medical Center in Boston, Massachusetts. Dr. Sun is also affiliated with MelroseWakefield Hospital.
What medical group is Dr. Daniel Chichek Sun part of?
Dr. Sun is linked to New England Baptist Hospital. Dmand AI links Dr. Sun to 2 more medical groups.
Does Dr. Daniel Chichek Sun accept Medicare?
Yes. CMS data shows Dr. Sun billed Medicare for 2,463 services in 2024.
How many Medicare patients does Dr. Daniel Chichek Sun see?
CMS counts 471 Medicare patients who saw Dr. Sun in 2024, with an average age of 73.
What services does Dr. Daniel Chichek Sun bill to Medicare?
In 2024, Dr. Sun's most billed Medicare services were injected or infused drug (J1010), office visit, established patient (99213) and surgery: bones and joints (20610).
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What drugs does Dr. Daniel Chichek Sun prescribe most?
In 2024 Medicare Part D data, Dr. Sun's most prescribed drugs by claims were Mupirocin.
Has Dr. Daniel Chichek Sun received payments from drug or device companies?
CMS Open Payments shows $16,896 in general payments to Dr. Sun from 21 companies from 2016 to 2025. The largest total came from Stryker Corporation.
How long has Dr. Daniel Chichek Sun been practicing?
Dr. Sun graduated from medical school in 2015, 11 years ago.
Does Dr. Daniel Chichek Sun do research?
Dmand AI links 29 publications to Dr. Sun, published from 2011 to 2025.
Who does Dr. Daniel Chichek Sun publish with?
Dr. Sun's most frequent co-authors are Gloria Shoshana Coden, MD (2 shared papers), Mohamad Jamal Halawi, MD (2 shared papers) and Melvyn Augustus Harrington, MD (2 shared papers).
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